Patent US3848930A successfully refreshed from Google Patents.
US3848930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous mining machine with drive to angled end sections
Assignee: Tamrock World Corp NV
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Filing: 1973-10-17
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Granted: 1974-11-19
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Expires: 1993-10-17
Abstract
Abstract The continuous mining machine has a body portion mounted on endless tracks with a boom member pivotally secured thereto and extending forwardly therefrom. A drum member is rotatably mounted on the front end of the boom member and has cutting elements extending radially therefrom. The drum member has a cylindrical intermediate section and a pair of canted end sections having a configuration of a segment of a cone. The end sections have radially extending cutter bits with the inner rows of bits overlapping the end rows of bits on the intermediate section to provide a continuous cutting pattern along the entire length of the drum member. The canted end sections provide an opening between the intermediate section and the respective end sections for the boom member front end portions. The drive means for the drum member includes input shafts extending through the openings between the drum member intermediate section and the canted end sections. Pinion gears on the drive shafts mesh with bevel gears secured to the drum member intermediate section. The canted end sections are driven by gearing meshing with the bevel gears or directly from the bevel gears through a universal type joint.
Inventors
- 👤 M Lebegue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:40
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/24; E21C31/00; E21C31/02; E21C31/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
219 words
A continuous mining machine comprising, an elongated body portion mounted on propelling means, a boom member pivotally secured to said body portion and extending forwardly therefrom, a drum member rotatably mounted on the front of said boom member transversely to said body portion, said drum member having cutting elements extending therefrom, said drum member having an intermediate section and a pair of end sections, said end sections extending angularly to said intermediate section so that certain of said cutting elements mounted on said drum member overlap along the front of said drum member to provide a continuous cutting pattern along the length of said drum member, said pair of said drum member end sections having rear portions spaced from said drum member intermediate section and forming a pair of openings between said end sections and said intermediate section, input drive shafts for rotating said drum mEmber, said input drive shafts extending through said respective openings, bevel gear drive means positioned within said drum member and nonrotatably secured to said intermediate section, pinion gears secured to said input drive shafts and meshing with said respective bevel gear drive means, and means drivingly connecting each of said bevel gear drive means to said adjacent end sections so that said input shafts rotate said drum member intermediate section and said end sections.
Claim 2
Dependent Claim
219 words
A continuous mining machine comprising, an elongated body portion mounted on propelling means, a boom member pivotally secured to said body portion and extending forwardly therefrom, a drum member rotatably mounted on the front of said boom member transversely to said body portion, said drum member having cutting elements extending therefrom, said drum member having an intermediate section and a pair of end sections, said end sections extending angularly to said intermediate section so that certain of said cutting elements mounted on said drum member overlap along the front of said drum member to provide a continuous cutting pattern along the length of said drum member, said pair of said drum member end sections having rear portions spaced from said drum member intermediate section and forming a pair of openings between said end sections and said intermediate section, input drive shafts for rotating said drum mEmber, said input drive shafts extending through said respective openings, bevel gear drive means positioned within said drum member and nonrotatably secured to said intermediate section, pinion gears secured to said input drive shafts and meshing with said respective bevel gear drive means, and means drivingly connecting each of said bevel gear drive means to said adjacent end sections so that said input shafts rotate said drum member intermediate section and said end sections.
Claim 3
Dependent Claim
40 words
A continuous mining machine as set forth in claim 1 in which said means drivingly connecting each of said bevel gear means to said sections includes, universal means connecting said bevel gear drive means to each of said end sections.
Claim 4
Dependent Claim
80 words
A continuous mining machine as set forth in claim 1 in which said means drivingly connecting each of said bevel gear means to said end sections includes, a first pair of shafts nonrotatably secured within said end sections and extending toward said bevel gear drive means, a second pair of shafts positioned within said intermediate section and nonrotatably connected to said respective bevel gear drive means, and universal means connecting said bevel gear means to said first pair of shafts.
Claim 5
Dependent Claim
52 words
A continuous mining machine as set forth in claim 1 in which said means drivingly connecting each of said bevel gear means to said end sections includes, second bevel gear means nonrotatably connected to each of said respective end sections, said second bevel gear means meshing with said bevel gear drive means.
Claim 6
Dependent Claim
66 words
A continuous mining machine as set forth in claim 1 in which said means drivingly connecting each of said bevel gear means to said end sections includes, a pair of shaft nonrotatably secured within said end sections and extending toward said bevel gear means, second bevel gear means nonrotatably connected to each of said shafts, said bevel gear means meshing with said bevel gear drive means.
Claim 7
Dependent Claim
64 words
A continuous mining machine as set forth in claim 1 in which said means drivingly connecting each of said bevel gear means to said end sections includes, second bevel gear means nonrotatably connected to each of said end sections, third bevel gear means nonrotatably connected to said first bevel gear drive means, said second bevel gear means meshing with said third bevel gear means.
Claim 8
Dependent Claim
57 words
A continuous mining machine as set forth in claim 6 in which said means drivingly connecting each of said bevel gear means to said end sections includes, a pair of shafts nonrotatably secured within said end sections and extending toward said bevel gear drive means, said second bevel gear means nonrotatably connected to each of said shafts.
Claim 9
Dependent Claim
72 words
A continuous mining machine as set forth in claim 1 in which said means drivingly connecting each of said bevel gear means to said end sections includes, annular inwardly extending gear means, said end sections having second inwardly extending annular gear means, a compound gear having a first gear portion meshing with said inwardly extending annular gear means and a second gear portion meshing with said second inwardly extending annular gear means.
Claim 10
Dependent Claim
55 words
A continuous mining machine as set forth in claim 8 in which said means drivingly connecting each of said bevel gear means to said end sections includes, a pair of shafts nonrotatably secured within said end sections and extending toward said bevel gear means, said second inwardly extending annular gear means secured to said shafts.
References Cited (Backward Citations)
US2758826A
Cited
US3101932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |